€85 Find Cheap Flights to Portsmouth

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Portsmouth departing on 12/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags

Search hundreds of travel sites at once for deals on flights to Portsmouth

In the last 7 days, travellers have searched 41,299,237 times on KAYAK, and here's why:

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Good to know

Low season

January

High season

June

Cheapest flight

€85
Best time to beat the crowds (31% less expensive on average)
Most popular time to fly (49% more expensive on average)
Flight from Dublin to Southampton

FAQs - booking Portsmouth flights

  • How long is the flight to Portsmouth?

    Flights from Dublin1h 40m
  • How to fly to Portsmouth?

    You cannot fly directly to Portsmouth. KAYAK recommends you fly to Southampton Eastleigh (SOU) (23.61 km from Portsmouth). From there you can hire a car or take a taxi.

  • What airports are near Portsmouth?

    The closest airport is Southampton Eastleigh (SOU) (23.61 km). Other nearby airports are London Gatwick (LGW) (73.89 km), London Heathrow (LHR) (84.73 km) or London All airports (LON) (101.61 km). KAYAK recommends you fly to Southampton Eastleigh.

  • How far is Southampton Eastleigh Airport from central Southampton?

    The city centre of Southampton is 6 km from Southampton.

  • What is the name of Southampton’s airport?

    When flying to Southampton, you'll arrive at Southampton Eastleigh Airport (SOU). The airport is also known as Eastleigh or Southampton.

  • How does KAYAK find such low prices on flights to Portsmouth?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Portsmouth.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Portsmouth?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portsmouth is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Portsmouth?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portsmouth with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Portsmouth?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portsmouth up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Portsmouth

  • There is no major airport in Portsmouth,it is instead served by London's airports. We recommend you fly to London Heathrow Airport Airport, however you can also fly to London Gatwick Airport airport, London City Airport airport, London Luton Airport airport, London Stansted Airport airport or London Southend Airport airport.
  • Looking for cheap airfare to Portsmouth? 25% of our users found return tickets to Portsmouth for the following prices or less: From Dublin €251
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly from Ireland is January.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Portsmouth flight deals.
See more tips

Top airline flying to Portsmouth

Need help choosing which airline to fly with from Ireland to Portsmouth? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Aer LingusOverall score based on 1074 reviews
7.3Boarding
8.0Crew
6.4Food
7.0Comfort
6.8Entertainment
Airline reviews

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

2.0 MediocreValerie, Dec 2024DUB - BCN
Read more Aer Lingus reviews

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

Was not aware that Aer Lingus was like the cut-rate services in the states, with no food or beverage (other then 3.50 Euro coffee) and no screens for entertainment. Was a great flight, but not much in the way of services.

Both flights late. Almost missed connecting flight and flight staff not willing to help expedite us off the plane.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

I didn’t realize Aer Lingus was a “nickel and dime” kind of airline where you had to separately buy all the amenities you wanted. The push to purchase duty-free beauty products was off-putting. And our row had the least amount of leg room I’ve ever dealt with on a flight.

We couldn't talk to aer lingus we had issues with the flight change and aer lingus made us talk to kayak

Very pleasant staff, there was some turbulence but the captain was very apologetic and gave notice where possible.

Book Cheap Portsmouth Plane Tickets

Recent return flight deals

4/2Tue
directAer Lingus
1h 45mDUB-SOU
5/2Wed
directAer Lingus
1h 40mSOU-DUB
€98
4/2Tue
directAer Lingus
1h 45mDUB-SOU
5/2Wed
directAer Lingus
1h 40mSOU-DUB
€99
9/1Thu
directAer Lingus
1h 40mDUB-SOU
13/1Mon
directAer Lingus
1h 35mSOU-DUB
€100
20/1Mon
directAer Lingus
1h 40mDUB-SOU
27/1Mon
directAer Lingus
1h 40mSOU-DUB
€103
4/2Tue
direct
1h 45mDUB-SOU
5/2Wed
1 stop
8h 40mSOU-DUB
€131
4/2Tue
direct
1h 45mDUB-SOU
5/2Wed
1 stop
3h 55mSOU-DUB
€132
14/3Fri
directBritish Airways
1h 40mDUB-SOU
18/3Tue
directBritish Airways
1h 40mSOU-DUB
€268
9/1Thu
directBritish Airways
1h 40mDUB-SOU
13/1Mon
directBritish Airways
1h 35mSOU-DUB
€269
30/1Thu
1 stopKLM
19h 00mORK-SOU
3/2Mon
1 stopKLM
19h 35mSOU-ORK
€395
25/1Sat
1 stopKLM
24h 00mDUB-SOU
27/1Mon
1 stopKLM
4h 45mSOU-DUB
€409

Search by stops

Search by airline

Search by price

Recent one-way flight deals

12/6Thu
directAer Lingus
1h 40mDUB-SOU
€85
20/6Fri
1 stop
10h 45mDUB-SOU
€99
21/6Sat
directAer Lingus
1h 50mDUB-SOU
€103
12/6Thu
1 stopKLM
5h 50mDUB-SOU
€104
20/6Fri
directAer Lingus
1h 50mDUB-SOU
€107
30/1Thu
directBritish Airways
1h 45mDUB-SOU
€121
26/4Sat
directBritish Airways
1h 50mDUB-SOU
€135
26/4Sat
directBritish Airways
1h 50mDUB-SOU
€136
23/5Fri
1 stopBlue Islands
19h 40mDUB-SOU
€225
23/5Fri
2 stopsBlue Islands
6h 40mDUB-SOU
€389

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to Portsmouth

Complete your trip to Portsmouth with a hotel stay or car hire

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.